5691681360 has 60 divisors (see below), whose sum is σ = 19114565652. Its totient is φ = 1517781504.

The previous prime is 5691681343. The next prime is 5691681367. The reversal of 5691681360 is 631861965.

5691681360 is a `hidden beast` number, since 569 + 1 + 6 + 81 + 3 + 6 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3017964096 + 2673717264 = 54936^2 + 51708^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5691681367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3951837 + ... + 3953276.

Almost surely, 2^5691681360 is an apocalyptic number.

It is an amenable number.

5691681360 is an abundant number, since it is smaller than the sum of its proper divisors (13422884292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5691681360 is a wasteful number, since it uses less digits than its factorization.

5691681360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7905132 (or 7905123 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 5691681360 is about 75443.2326984999. The cubic root of 5691681360 is about 1785.4465751756.

The spelling of 5691681360 in words is "five billion, six hundred ninety-one million, six hundred eighty-one thousand, three hundred sixty".